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US20220173700A1
(en)
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Power amplifier with series transformer combiners and harmonic tuning
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(en)
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Oscillation generator
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(en)
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Short wave converter
|
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(en)
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Frequency modulation-amplitude modulation receiver circuits
|
|
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(en)
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Centimeter wave apparatus
|
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(en)
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Frequency changing circuits
|
|
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(en)
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Transmitting-receiving circuit arrangement for short waves
|
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GB513679A
(en)
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Improvements in or relating to electrical oscillation generators
|
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(en)
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Detector-oscillator circuit for ultra high frequency receivers
|
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(en)
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Superheterodyne receiver
|
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PL33851B1
(enrdf_load_stackoverflow)
|
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|
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(en)
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Frequency changer
|
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CN113273086A
(zh)
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一种混频器以及通信设备
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(en)
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High frequency transmission system
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(en)
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High frequency mixer stage
|
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(en)
|
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Transmitter
|
|
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(en)
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Multiband receiver circuit
|
|
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(en)
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Push-pull mixing circuit arrangement
|
|
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(en)
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Local oscillator circuit in superheterodyne receivers
|
|
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(en)
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Non-radiating frequency converter for a radio receiver
|
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(en)
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Tunable high frequency oscillator circuit
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GB632658A
(en)
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Improvements in or relating to mixing circuit arrangements
|
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(en)
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Oscillator
|
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US1988960A
(en)
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Radio transmitter
|
|
US1945547A
(en)
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Oscillation generation
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